setlocal
set logfile=%StartupLogs%\installwebfarm.log

@powershell "((new-object net.webclient).DownloadFile('http://download.microsoft.com/download/5/7/0/57065640-4665-4980-A2F1-4D5940B577B0/webfarm_v1.1_amd64_en_US.msi','startup\webfarm_v1.1_amd64_en_US.msi'))" >> %logfile% 2>&1
msiexec /i startup\webfarm_v1.1_amd64_en_US.msi /qn /log %logfile%

EXIT /B 0